package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.enity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@Slf4j
@RestController
@RequestMapping("/category")

/**
 * 分类管理
 */
public class CategoryController {
    @Autowired
    private CategoryService categoryService ;

    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category){
        log.info("category:{}",category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    @GetMapping("/page")
    public R<Page> page (int page ,int pageSize){
        //分页构造器
        Page<Category> pageInfor = new Page<>(page,pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加排序条件 根据sort进行升序排序
        lqw.orderByAsc(Category::getSort);
        //分页查询
        categoryService.page(pageInfor,lqw);

        return R.success(pageInfor);
    }

    /**
     * 根据id删除分类
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete (Long id ){

        log.info("删除成功,id为:{}",id);
//        categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("删除城功");
    }

    /**
     * 根据ID修改数据
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category){
        log.info("修改分类消息{}",category);
        categoryService.updateById(category);
        return R.success("修改成功");
    }

    /**
     * 根据条件查新分类条件
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        //条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //查询条件
        lqw.eq(category.getType() != null ,Category::getType, category.getType());
        //添加排序条件
        lqw.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        //查询
        List<Category> list = categoryService.list(lqw);

        return R.success(list);
    }

}
